Is the Internet's time wrong? NIST warns servers may have lapsed due to a power outage

• NIST confirmed several public time servers lost their atomic reference signal
• A generator failure interrupted the distribution of America’s primary atomic time scale
• Some NIST servers responded normally while quietly serving inaccurate timestamps

The National Institute of Standards and Technology (NIST) has issued an alert that some of its public time servers may be unreliable.

The advisory focuses on a defined set of hosts, including multiple time-x-b.nist.gov addresses and the authenticated ntp-b.nist.gov service.

According to NIST, these systems may still respond to network requests while no longer referencing a valid atomic time source.

What failed at the Boulder facility

To avoid spreading incorrect data ...